Once upon a time, TV shows opened up in full screen (no ratings sticker, no "bug" at the bottom promoting another show); they had opening credits (complete with often-catchy theme songs); the conclusion offered full closing credits (sans half-screen "pinches"); and the production ended with a niftyÂ audio-visual "tag"Â to let you know the names of the kindÂ person, people, or company that brought you that particular program. It's not like that any more for most shows, so we had to dig back into the television archives to find production tags worthy of inclusion in this quiz. If you have favorites not listed here, feel free to add them to the comments!